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Rural Land
Jefferson County, IL
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
28,133
-
-
1910
29,111
978
0.3
1920
28,480
-631
-0.2
1930
31,034
2,554
0.9
1940
34,375
3,341
1.0
1950
35,892
1,517
0.4
1960
32,315
-3,577
-1.0
1970
31,446
-869
-0.3
1980
36,552
5,106
1.5
1990
37,020
468
0.1
2000
40,045
3,025
0.8
Source:
U.S. Bureau of Census
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